blob: 138f1e56cfd1070bb7001bd028c2c19044b41928 [file] [log] [blame]
# Copyright 2021 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.
import("//build_overrides/pigweed.gni")
import("//build_overrides/pigweed_environment.gni")
import("$dir_pw_toolchain/rbe.gni")
declare_args() {
# This flag allows you to specify the root directory of the clang, clang++,
# and llvm-ar binaries to use when compiling with a clang-based toolchain.
# This is useful for debugging toolchain-related issues by building with an
# externally-provided toolchain.
pw_toolchain_CLANG_PREFIX = ""
# This flag allows you to specify the root directory of the rustc binary.
pw_toolchain_RUST_PREFIX = ""
}
pw_toolchain_clang_tools = {
if (pw_toolchain_CLANG_PREFIX != "") {
ar = pw_toolchain_CLANG_PREFIX + "/"
ld = pw_toolchain_CLANG_PREFIX + "/"
cc = pw_toolchain_CLANG_PREFIX + "/"
cxx = pw_toolchain_CLANG_PREFIX + "/"
} else {
ar = ""
ld = ""
cc = ""
cxx = ""
rustc = ""
}
if (pw_toolchain_RUST_PREFIX != "") {
rustc = pw_toolchain_RUST_PREFIX + "/"
} else {
rustc = ""
}
_rbe_debug_flag = ""
if (pw_toolchain_USE_RBE) {
if (pw_toolchain_RBE_DEBUG) {
_rbe_debug_flag = " -v"
}
_exec_root = rebase_path("//")
_rewrapper_binary = "rewrapper"
_pw_rbe_config = pw_rbe_clang_config
_rbe_toolchain_prefix =
_rewrapper_binary +
" --labels=type=compile,lang=cpp,compiler=clang --cfg=" +
_pw_rbe_config + " --exec_root=" + _exec_root + " -- " +
rebase_path(pw_env_setup_CIPD_PIGWEED, root_build_dir) + "/bin/"
cc = _rbe_toolchain_prefix + "clang" + _rbe_debug_flag
cxx = _rbe_toolchain_prefix + "clang++" + _rbe_debug_flag
} else {
cc += "clang"
cxx += "clang++"
}
ar += "llvm-ar"
ld += "clang++"
rustc += "rustc"
}